Steve Tso (left) will succeed Rick Tsai (right) as the chairman and CEO for TSMC Solar and TSMC Solid State.
TSMC revealed two astonishing personnel changes on the same day.
After its senior VP of Worldwide Sales and Marketing Jason Chen resigned
to be appointed as ACER's corporate president and CEO from, Rick Tsai,
the chairman and CEO for TSMC Solar and TSMC Solid State Lighting was
reported to leave his job to take up the post of chairman of Chunghwa
Telecom, the news shocked the industry. TSMC confirmed that Steve Tso,
TSMC's chief information officer was expected to be Tsai's successor,
and the change of personnel would be completed before the end of January
next year.

TSMC chairman Morris Chang once pointed out that TSMC's solar and solid
state lighting business were an "ace in the hole" of the company.